An atom of a chlorine has an atomic number of 17and a mass number of 37 how many protons neutrons and electrons are in a need

number of protons =17

number of neutrons=20

number of electrons=17

Atomic number is the same as proton number

To find the neutrons

subtract the atomic number from the mass number

thus, Neutrons =Mass number - Atomic number

Neutrons=37-17

Neutrons=20

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

the answer is 0.42 is that is an option. this question provides no info